This is known issue in SP21 and also in SP22 , We will be providing fix in SP23 . We already have support ticket logged from one user ,Please log a Support ticket if you wanted a hotfix on older releases.
This is known issue , fixed in SP22 , Please upgrade to SP22 by applying patch .[1] https://experience.adobe.com/#/downloads/content/software-distribution/en/aem.html?package=/content/software-distribution/en/details.html/content/dam/aem/public/adobe/packages/cq650/servicepack/fd/Designer-Patch/sp22...
Shared PDF Attached PDF is dynamic interactive XFA . For dynamic Interactive XFA ,acrobat generates accessibility tags when user open PDF in acrobat if screen reader is running . User will not be able to see tags explicitly in Acrobat Accessibility tags PDF. When i tried with JAWS , NVDA and Windows...